Folium Herbarium Vivum · est. 1847

A botanical archive, still growing

Folium

The herbarium whose specimens are grown, not dried.

Founded in 1847 by the botanist-printer Elias Marchbanks, Folium abandoned the press in its second century. Nothing here was ever flattened between blotting papers: each sheet germinates the moment you open it, drawn stem by stem from a single seed number. Close the cabinet and return — the beds will have been resown, and nothing you saw will ever grow again.

this visit grew from seed № ···· ···· — germinated just now

Visit the specimen beds
Accessions
12,431
Seed-lines
46
Beds open
6
Repeated sheets
0
specimen of the day — germinating…

Cabinet II — mounted sheets

The Specimen Beds

Six beds are open to visitors this season. Each sheet below germinated for you alone — a unique branching, a unique name, a unique gathering. Should a specimen displease, compost it: the bed will grow another.

Mounting follows the Marchbanks convention: gummed linen tape at the corners, the label lower right, the accession number in ochre wax crayon. Visitors are reminded that the specimens are alive and should not be watered.

Plate XIV — how to read a sheet

Anatomy of a Specimen

Plate XIV — annotated while it grew. The labels are placed by measurement, not by hand: the archive knows where its own leaves are.

Every Folium sheet is written in the same grammar. Marchbanks called it the five stations — the points a curator must find before a specimen may be accessioned. Because our plants are grown from rules rather than gathered from hedgerows, the stations are known to the archive precisely, and the plate opposite annotates itself afresh at every germination.

  1. Root collar. The press line, where the specimen meets the sheet. All growth is measured outward from this point — in our grammar, distance from the collar is time.
  2. Internode. A clear stretch of primary axis between stations. Its length records one instruction — F, go forward — repeated and slightly regretted.
  3. Node & axil. Where the stem changes its mind. A bracket opens, a daughter branch remembers everything and departs at her own angle.
  4. Lamina. The leaf blade, unfurled last, always in the order of its birth. Leaves alternate sides along the axis, as they insist on doing in the field.
  5. Inflorescence. The seed head — capsule, umbel, spike, globe or bloom according to the seed-line. What it scatters, the next visitor grows.

Curators may regrow the plate to check the annotation holds for any individual. It always has.

Ledger & marginalia

Notes from the Collection

14 May 1847

E. Marchbanks, founder

On the impossibility of keeping a meadow: I have pressed four hundred sheets this spring and killed four hundred plants to do it. A herbarium is a graveyard with good handwriting. I should sooner keep the rule of the plant than its corpse — the turn of the stem, the interval of the leaves. The rule weighs nothing and never fades.

— E.M.

3 November 1902

C. Quill, second keeper

The Quarrel Wood gathering is complete. Forty-one seed-lines reduced to grammar: axiom, production, angle. Miss Fennimore objects that a plant written as instructions is no longer botany. I replied that a plant written as instructions is the only botany that survives the damp. The cellar flooded again in October; the grammars did not notice.

— C.Q.

this morning

the Archive itself

Seed № ···· germinated at —. Six beds sown, one plate annotated, every binomial invented on waking. The visitor before you saw none of these plants; the visitor after you will see none of them either. The beds have not yet been resown this visit.

— FOLIUM

Accession ledger — sown this visit

№BinomialFamilyBedHabitState

Entries are struck through when composted. The ledger, like everything else here, is re-inked at each germination.